Dockerfile

# ──────────────────────────────────────────────
# Dockerfile
# ──────────────────────────────────────────────

FROM node:23-alpine AS base

# Install dependencies only when needed
FROM base AS deps
RUN apk add --no-cache libc6-compat
WORKDIR /app

COPY package.json yarn.lock* ./
RUN yarn --frozen-lockfile --production=false

# Rebuild source code only when needed
FROM base AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .

# Build arguments
ARG NEXT_PUBLIC_BASE_URL_V3
ARG NEXT_PUBLIC_FIREBASE_API_KEY
ARG NEXT_PUBLIC_FIREBASE_AUTH_DOMAIN
ARG NEXT_PUBLIC_FIREBASE_DATABASE_URL
ARG NEXT_PUBLIC_FIREBASE_PROJECT_ID
ARG NEXT_PUBLIC_FIREBASE_STORAGE_BUCKET
ARG NEXT_PUBLIC_FIREBASE_MESSAGING_SENDER_ID
ARG NEXT_PUBLIC_FIREBASE_APP_ID

# Export environment variables for build
ENV NEXT_PUBLIC_BASE_URL_V3=${NEXT_PUBLIC_BASE_URL_V3}
ENV NEXT_PUBLIC_FIREBASE_API_KEY=${NEXT_PUBLIC_FIREBASE_API_KEY}
ENV NEXT_PUBLIC_FIREBASE_AUTH_DOMAIN=${NEXT_PUBLIC_FIREBASE_AUTH_DOMAIN}
ENV NEXT_PUBLIC_FIREBASE_DATABASE_URL=${NEXT_PUBLIC_FIREBASE_DATABASE_URL}
ENV NEXT_PUBLIC_FIREBASE_PROJECT_ID=${NEXT_PUBLIC_FIREBASE_PROJECT_ID}
ENV NEXT_PUBLIC_FIREBASE_STORAGE_BUCKET=${NEXT_PUBLIC_FIREBASE_STORAGE_BUCKET}
ENV NEXT_PUBLIC_FIREBASE_MESSAGING_SENDER_ID=${NEXT_PUBLIC_FIREBASE_MESSAGING_SENDER_ID}
ENV NEXT_PUBLIC_FIREBASE_APP_ID=${NEXT_PUBLIC_FIREBASE_APP_ID}

ENV NEXT_TELEMETRY_DISABLED=1

RUN yarn build

# Production image - copy only production files
FROM base AS runner
WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs

COPY --from=builder /app/public ./public

# Set correct permissions and leverage Next.js standalone output
RUN mkdir .next
RUN chown nextjs:nodejs .next

# Copy standalone output and minimal dependencies
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

USER nextjs

EXPOSE 3000

ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

CMD ["node", "server.js"]